Terminal for electrical purposes



E. B. STONE.

TERMINAL FOR ELECTRICAL PURPOSES. APPLICATION FILED FEB. I6, 1918- INVENTOR.

ORNE Y.

Patented May 17, 1921.

ar orsies.

ELMER B. STONE, on NEW BRITAIN, connncrrcnr, vassre voa To HE AMERIGANT HARDWARECORPORATION, on new BRITAIN, comvncrronr, A CORPORATION" OF CONNECTICUT.

TERMINAL r03 nnno'rnrcan runrosnsi 1 1 To all whom it may concern:

Be it known that I, ELMER B. SToNE, a

citizen of the United States, residing at New Britain, in the county of Hartford and State of Connecticut, have invented a new and Improved-Terminal for Electrical Purposes, of which the following is a specification and in the construction and use ofwhich the objects herein set out, as well as others, may be attained, is illustrated in the accom panying drawings, in wh1ch Figure 1 is a view of a piece of insulated wire showing my improved terminal attached thereto, one end having the insulation partly removed to illustrate the method of attachment.

Fig. 2 is a detail side view of my improved terminal.

Fig. 3 is a similar view but looking at the opposite side of the terminal.

Fig. 4 is a View of one end of the wire with the insulation partially removed, said wire being arranged in a position at right angles to that shown at the right hand side of Fi 1.

Fig. 5 is an end view of a conductor havin my improved terminal attached thereto.

My improved terminalis not restricted to use in connection with any particular form of electrical conductor or to any particular use to which said conductors may be put,

but as it finds ready application to short conductors that are intended to be removably secured at their ends to binding posts, I have selected such for the purpose of illustrating my invention in the drawings herein, in which the numeral 5 indicates a short conductor having any suitable form of insulat- Specification of Letters a means of securing my improved terminal in place. j 1

This terminal embodles asupport that is .Patented lllay 1 7, 1921 Application filed February 16, 1918. Serial No. 217,682. Y

embedded in thesubstance of the insulating material and that preferably is provided witlrmeans whereby. it may be forced intosaid material.

In its preferred form this "support comprises a short tube 8. This tube 115 formed from any suitable conductingma terial, as copper, and has preferably on its" outer surface a thread 9.- "Its end'lO is more or less sharp to cause it to readily penetrate the insulating material '6; One side of-thetube 11, at that end opposite the sharpened end, is preferably longer than the opposite side, and a notch 12is formed in this end to receive'the wire 7. 1 "n' is formed integral with the tube or support 8, this-ear preferably having an 'openingle extending lengthwise along the center there of and to receive a binding post to which the terminal may be attached.

In securing my improved terminal in place the ear 13 is grasped between the thumb and fore-finger and the sharpened edge 10 is placed against the end of the insulating material, with the wire in the center. By turning the terminal in a directionto cause the thread 9 to draw the ter V minal into the insulating material, said terminal may be readily forced into place, and as particularly shown in Fig. 1 of the drawings. When thus positioned it will be noted that the support is thoroughly embedded in the substance of the insulating material, there being'a portion 15 of such substance located between the wire and the support as well as a substantial part of the material outside of the support, and the latter will be thus securely and firmly held in place. The wire 7 may be engaged between the car 13 and a binding screw or like part, but the wire is preferably secured to the terminal by placing the wire in the notch 12 and then placing solder 16 or like material within the opening 14 to secure the wire firmly in'place. In accordance with the provisions of the patent statutes, I have described the principles of operation of my invention, together with the device which I now consider to represent the best embodiment thereof; but

, 0 An ear-13 preferably constituting a loop vice shown is only illustrative, and that the insulation of soft, flexible material, a core within said material, and a terminal comprising a tubular support having means to permit it to penetrate said insulating material, said material being located inside and outside of said supportand exerting a grip thereon to retain it in place, said terminal also havin means to receive a connection.

a 3. An e ectrical conductor including an insulation of soft flexible material, a core within said material, a terminal comprising a support of'tubular shape larger than said core and having means to permit it to penetrate said material, the latter being located both within and without the terminal and exerting a grip thereon suflicient to retain it in place, and means on said terminal to receive an electrical connection.

4. Anelectrical conductor including an insulation of soft flexible material, a core within said material, a terminal comprising a tubular support enough larger than said core to permit the location of the insulation between said core and said support, the latter having means to permit it to be embedded in 7 said material that is located both within and without the support, and an ear extending from said support and having an opening to receive an electrical connection, said ear being electrically connected with said core.

5. An electrical conductor including an insulation of soft flexible material, a core within said material, a terminal comprising a tubular support having means to cut its way into said material, the latter being located both within and without the support and between it and said core, and a flat ear integrally formed with saidsupport and having a lengthwise opening to receive a binding post and within which said core projects.

6. An electrical conductor including an 'terial, and a flat ear integrally formed with said support and having a lengthwise opening to receive a binding post and within which said core projects. ELMER B. STONE. 

